Turning machine



FIG. 1 is a perspective view of a turning machine embodying our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view taken from the right of FIG. 2;

FIG. 4 is a side view taken from the left of FIG. 2;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof.

The bottom view, which is not shown, is unornamented and not visible in normal use. 

The ornamental design for a turning machine, substantially as shown and described. 